62 
26. CARDUUS. 
1. C. NUTANS. Musk Thistle. July— August. O 
In waste ground and dry barren pastures. In the moat at York. 
Ganthorpe. Newton dale, seven miles north of Pickering. 
2. C. ACANTHoiDEs. Welted Thistle. June— July. O 
Way sides, frequent. 
3. C. TBNUiFLORUS. Sleuder-flowered Thistle. June— July. © 
Near Redcar. Near Whithy, frequent. 
4. C. MARiANUs. Milk Thistle. July. ^ 
Near Acomh, «fec. near York. Runswick, eight miles north west of 
Whithy. Ellershaw hhl, near Ripon. Near Rillington. Near 
Boroughhridge. 
5. C. ERioPHORus. Woolly-headed Plume Thistle. August. ^ 
Hackness, near Scarhro’. Norton, near Malton, frequent. 
TRIBE III. CICHORACEJE. 
27. SONCHUS. 
1. S. ARVBNSis. Corn Sow-thistle. August. 7/ 
In corn fields, very frequent. 
The beautiful parasitic Uredo ^onchi is found on the stalks and leaves of both the species ; at first 
bright scarlet, afterwards orange, 
2. S. OLBRACBus. Common Sow-thistle. July— September. 0 
cc and (3 . Both of frequent occurrence in cultivated as well as in waste 
ground. 
The larva of Cucullia Umbratica, (the Large Pale Shark ;) Cucullia lucifuga, (the Large Dark Shark ;) 
and Actebia prcecox, (the Portland ;) feeds on this plant. 
28. LACTUCA. 
1 . L. viROSA. Strong- scented Lettuce. August — September. ^ 
Old walls and rough borders of fields. Near the road between 
York and Shipton. On rocks at Thorp Arch. On rocks at Knares- 
bro’. On the walls of Kirkham Abbey. Walkington, near Beverley. 
On the castle walls, Richmond. Mulgrave woods, near Whitby. 
The larva of Arctia Caja, (the Great Tiger Moth ;) Calocampa exoleta, (the Sword Grass ;) Mames- 
tra Suasa, (the Dog’s Tooth;) Euplexia lucipara, (the Small Angleshades ;) Folia flavocincta, (the 
Large Ranunculus ;) Folia dysodea, (the Ranunculus ;) and Mormomaura, (the Old Lady ;) feeds on it. 
29. PRENANTHES. 
1. P. MURALis. Wall Lettuce. July. 1/ 
On old walls and in stony woods, frequent. 
